Facebook took similar steps in the U.K., with BBC reporting that ads ran in newspapers including The Times, The Guardian and the Daily Telegraph providing 10 red flags for users of the social network to watch out for in determining whether posts are real or fake.

And Facebook told BBC “tens of thousands” of fake accounts have been removed in the U.K.

Facebook U.K. director of policy Simon Milner told BBC the social network was working with third-party fact checkers Full Fact and First Draft, adding:

People want to see accurate information on Facebook and so do we. We have developed new ways to identify and remove fake accounts that might be spreading false news so that we get to the root of the problem. To help people spot false news, we are showing tips to everyone on Facebook on how to identify if something they see is false. We can’t solve this problem alone, so we are supporting third-party fact checkers during the election in their work with news organizations, so they can independently assess facts and stories.

The social network told Natasha Lomas of TechCrunch it is monitoring repeated posting of the same content or spikes in messaging activity, flagging accounts displaying those traits, adding:

These changes help us detect fake accounts on our service more effectively, including ones that are hard to spot. We’ve made improvements to recognize these inauthentic accounts more easily by identifying patterns of activity without assessing the content itself. For example, our systems may detect repeated posting of the same content, or an increase in messages sent. With these changes, we expect that we will also reduce the spread of material generated through inauthentic activity, including spam, misinformation or other deceptive content that is often shared by creators of fake accounts.